Hey guys,
I got my hands on a Galaxy S21 Olympic Edition (Android 12, SP1A.210812.016.G991QOPU1BVH1), but unfortunately my LTE reception here in Germany is rather crap.
Ever since I became a dad and fulltime worker, the days of me rooting and flashing custom stuff are long gone. So I'd prefer to have it run 'untouched' and would like to ask for your advise regarding my options on what can be done about the band limitation.
I read through several similar threads and this is what I came up with:
- Enable bands in the service menu: Does not work, my device does not accept the codes. I read that the service menu is available in an earlier Android 11 build and settings are not overwritten when upgrading. So could I downgrade, enable all LTE bands and flash the current firmware again?
- Could I flash a different S21's Snapdragon firmware that supports Germany's bands? (Europe usually has Exynos)
- Try something with SamFw? I tried running the 'Unlock Verirzon' Option, but that just sat there and seemingly did nothing for 10 minutes. Any other ideas if I get fiddle around with it?
Any help is much appreciated, I really like this device and would like to be able to continue using it with its full capabilities.
Related
I'm in Japan for this year and I've just purchased a B-Mobile Free Data Sim (with voice), and while I can use the phone service, I can't use Data. After looking at b-mobile's GUARANTEED to work devices (bmobile.ne.jp/english/devices.html) other versions of the Galaxy S2 are listed, but not the i9100. However, in the list of acceptable bands, the following is written:
"Your device must support one of the following frequency
LTE Band 1 (2100MHz), Band 19 (800MHz), Band 21 (1500MHz)
W-CDMA/HSDPA/HSUPA Band 1 (2100MHz), Band 19 (800MHz)"
My Galaxy i9100T (From Vodaphone) should, as far as I know, support the W-CDMA Band 1 (2100MHz), but nonetheless, I can't use data.
I've made sure my APN settings are 100% correct, as according to the bmobile website.
Should I give up on trying to make this work, or is there some way I can get this going? Is there a particular radio or modem I can flash in order to get better connectivity? Otherwise I'm planning on buying a second hand Galaxy SC-02C or something which is on the list of devices guaranteed to work and relatively inexpensive. If you are knowledgeable on this subject, please lend a hand.
If there's any other information you require about my phone, please let me know.
Cheers
To the best of my knowledge, the phone wasn't sold there by carriers (neither the I9100 or the T), so there's no stock roms released by carriers in the country, and no modems bundled with those stock roms which would have been tested with the carrier's network as would normally be the case.
Sooo....You're probably stuck with trying a bunch of different modems unless a search throws up someone who's posted saying they had good connectivity with whatever modem on that network. If it was me, given the other relatively cheap option you mentioned (and my lack of patience with this sort of thing these days), I'd be buying the other phone if having a working phone without fuss was important to me (which it is).
Cheers,
I managed to get it working, on a stroke of luck. Flashing a few different modems didn't seem to get it connected, but after looking more extensively through the japanese version of the site, i found this page (bmobile.ne.jp/devices/setting_other_androidos.html) which suggested an alternative server to connect to for the APN (dm.jplat.net instead of mobile.ne.jp), even though this is the only page it seems to have this alternative server listed on. My reception isn't amazing, so maybe I'll continue as you suggested, flashing modems, until I can get better reception. Thanks for your help .
Anyway, for anyone who happens to have a similar problem, please try connecting to the above server and see if it works for you.
Hey everyone!
I bought a new S6 Edge from Amazon. Upon receiving the phone, I've noticed that it seems to have been made for the UAE.
Model: SM-G925F
Andriod: 5.0.2
BB Ver.: G925FXXU1AOC1
Kernel: 3.10.61-4260274
BUILD: LRX22G.G925FXXU1AOC
I currently live in Canada, and use Freedom mobile (AWS - B4 1700/2100) and this phone is not picking up service.
I'd like to know, is it possible to configure the modem to accept this frequency band? In the past I hacked the Qualcomm modem in my GS4 to accept this band.
I am unsure if this is a software or hardware limitation for this model, as I have tried dozens of times to root (in hopes I can modify baseband) - and have soft bricked 6 times. I've also looked into changing the CSC with Odin, but every time I try to flash anything but stock ROM I get soft bricked again...
I've been working on this for about 5 hours now, with no luck. Anyone able to enlighten me if I'm wasting my time?
Thanks a million in advance.
Edit: Looks like it's going to be easier to switch to literally ANY other carrier. This model supports every other band except UMTS B4. Maybe I can jump back on Freedom/Wind once they release LTE in the fall.
Hey everybody,
So recently i bought this international unlocked Galaxy S9+ (SM-965F/DS Exynos processor) off Amazon and it's great, everything is fine with the one major exception being that at home my signal is pretty poor and i get extremely delayed text messages coming in and calls taking forever to dial out or failing to connect. Not a problem, i'll turn on Wi-Fi calling, right? Wrong, option isn't available, some detail: I'm in the US on T-Mobile, updated to the latest Pie OS update, i'm very tech-capable and used to do tier 2 tech support for Verizon. Long story short, I've tried everything in the book including FDR and fresh setup as well as clearing system cache etc. and it's looking like the ONLY solution to get Wi-Fi calling (and subsequently VoLTE that i didn't realize wasn't enabled until researching and checking myself) enabled is to flash the ROM with a T-Mobile OS. Unfortunately i'm coming up negative trying to find the firmware for this phone. Plenty of resources out there for the SM-965U(Snapdragon), but none for the SM-965F(Exynos) as of yet as far as i can tell (and before any ignorance jumps in here as i've seen on other threads, NO the SM-965U software will NOT work on this model phone as it runs a different processor, non-Snapdragon Exynos chipset)
So, that all being said, is anyone out there working on a fix for this, is it likely i'll ever get a fix for this, and/or is the fix already available and I've just completely missed it? Any information or help would be greatly appreciated. Thank you for your time and consideration.
bahruuk said:
Hey everybody,
So recently i bought this international unlocked Galaxy S9+ (SM-965F/DS Exynos processor) off Amazon and it's great, everything is fine with the one major exception being that at home my signal is pretty poor and i get extremely delayed text messages coming in and calls taking forever to dial out or failing to connect. Not a problem, i'll turn on Wi-Fi calling, right? Wrong, option isn't available, some detail: I'm in the US on T-Mobile, updated to the latest Pie OS update, i'm very tech-capable and used to do tier 2 tech support for Verizon. Long story short, I've tried everything in the book including FDR and fresh setup as well as clearing system cache etc. and it's looking like the ONLY solution to get Wi-Fi calling (and subsequently VoLTE that i didn't realize wasn't enabled until researching and checking myself) enabled is to flash the ROM with a T-Mobile OS. Unfortunately i'm coming up negative trying to find the firmware for this phone. Plenty of resources out there for the SM-965U(Snapdragon), but none for the SM-965F(Exynos) as of yet as far as i can tell (and before any ignorance jumps in here as i've seen on other threads, NO the SM-965U software will NOT work on this model phone as it runs a different processor, non-Snapdragon Exynos chipset)
So, that all being said, is anyone out there working on a fix for this, is it likely i'll ever get a fix for this, and/or is the fix already available and I've just completely missed it? Any information or help would be greatly appreciated. Thank you for your time and consideration.
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Click to collapse
I'm currently researching the very same issue... So far i hypothesize , with no knowledge, that if it is rooted, you can then change the csc settings and configure it for TMO, thus enabling WiFi calling. If someone can confirm, that'd be great, otherwise i'm trudging slowly to verify.
Root and use tekhd detonator.
CynicalHeight00 said:
Root and use tekhd detonator.
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Click to collapse
Well i looked at this and it looks like a non-stock rom i'm sure wrought with problems that unfortunately is not helpful. My goal here is to have my phone work and continue to get standard updates with original and licensed (more or less) software and have it actually work. I'm not interested in a full OS replacement pre-loaded with a bunch of adblockers and other crap the designer thought would be useful, just want my standard features enabled and nothing else to change if at all possible. Also, if you believe my statement here is in error please explain, your one line really isn't very helpful, and nowhere on their website is there any description as to what tekhd detonator does / is supposed to do / what it will break. I'm certainly not risking bricking my phone when their own website says under all of its S9+ related material that it's for Snapdragon which the variant i have again doesn't use Snapdragon.
bahruuk said:
Well i looked at this and it looks like a non-stock rom i'm sure wrought with problems that unfortunately is not helpful. My goal here is to have my phone work and continue to get standard updates with original and licensed (more or less) software and have it actually work. I'm not interested in a full OS replacement pre-loaded with a bunch of adblockers and other crap the designer thought would be useful, just want my standard features enabled and nothing else to change if at all possible. Also, if you believe my statement here is in error please explain, your one line really isn't very helpful, and nowhere on their website is there any description as to what tekhd detonator does / is supposed to do / what it will break. I'm certainly not risking bricking my phone when their own website says under all of its S9+ related material that it's for Snapdragon which the variant i have again doesn't use Snapdragon.
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Click to collapse
This is going to be a hassle trust me. even with the Snapdragon models from different CSCs VoLTE and Wifi Calling do not carry over. An ATT 965U would have to be reflashed with the TMobile CSC and USERDATA files to get access to TMobile features. U are trying to do this with an Exynos model. I think you would have to root and install a custom firmware that has the TMobile USERDATA embedded.
Good luck.
can the U1 be flashed to the verizon u firmware? i thought i read someone tried this, but suspected it didn't work because he had previously used the phone with verizon with the unlocked firmware...
methcat said:
can the U1 be flashed to the verizon u firmware? i thought i read someone tried this, but suspected it didn't work because he had previously used the phone with verizon with the unlocked firmware...
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Click to collapse
You can flash the G965U onto the G965U1 and vice versa. It's been well documented that this will let us go from one carrier firmware to another as well as let us have the unbranded carrier firmware. The only catch to this is the bootloader version of the firmware your wanting to flash. The firmware one wishes to flash must have a bootloader version equal too (or greater then) what is currently on the phone.
If your trying to ask about flashing the U1 onto an exynos variant then the answer is definitely no. You can't flash firmware from a different model onto a different model.
Hi dear community,
I recently purchased a Samsung Galaxy Note 20 5G and wanted to check out, where I can see the different modes and if 5G networks are available.
Well, in fact that I'm a geek with frequencies and stuff, I was happily surprised, that actual phones show the operators and the mode. In Germany I've got 3 Operators (T-Mobile, Vodafone and o2) and we can see them each 3 times (e.g. o2 2G / o2 3G / o2 4G and so on) on actual phones. But with the new Galaxy Note 20 5G I can't I can only see the 3 without the modes.
Is it possible (perhaps with root, what I already wanted to perform) to change some settings in the build.prop or somewhere else, to activate that? Or do 5G phones don't have this feature anymore? The Device had Android 10 and I upgraded to 11. Still nothing. It was delivered with spanish Vodafone software (I still don't get it why) and even the update with the neutral software from Germany, didn't changed anything. Even the spanish Vodafone software and the welcome screen in spanish after resetting the phone didn't disappeared. I don't want to send this phone back, Can anyone help me please?
Please excuse my grammatical issues.
with googel controls now in effect slot of stuff that was once accomplished previously are now not. so I would likely is reason for no response, even though I am rooted on tmoble with 20 ultra (thanks dev team!) . I will be going back to using the 10+ because of this kinda stuff until scoped storage is hacked by a talented person.
as for your question, I am not sure exactly what your thoughts are, although I can only say that for tmoble pretty much always been it's a since 4g came out a scam to show only 4g,lte/hsp+ or whatever it is when the service is actually ¹g or 2g at best, here is a screenshot of the scam taken by myself showing 5G (LOL) when it in REALITY is so weak, my old KitKat s3 was faster. this kinda stuff happens all day long. t-mobiles ultra fast 5g network is actually a lie and is just enough speed it make browsing data work and designed to get to logged in to your wifi asap. because even with 10mbs download you actually have none when your upload is. 0.27 and according to their 'network specialists " I called that's within minimum the 5g range
I recently moved tmobile to usmobile CDMA/Verizon. Tmobile unlocked my phone without any issues.
I was expecting the next security update to be a fresh/vanilla samsung rom.
This didn't happen. I have read multiple things about people having issues with non-tmobile bands working on the device if the CSC is wrong. USMobile has me manually set the APNs and the phone connects to 4g/5g without issue. However the ultra wide band does not seem to want to work.
Is there an issue here? It's really hard to tell. Should I wipe the device? I really don't have the means to install a downloaded firmware at this moment. At the end of the day, I don't care that it's branded - just that it functions on the CDMA network fully. If it wont, then I will jump over to the GSM side of USMobile.